X0508 4 2025-11-10 0 0001320461 Cooper-Standard Holdings Inc. CPS 0001515839 Mastrocola David John 40300 TRADITIONS DRIVE NORTHVILLE MI 48168 1 0 0 0 0 Common stock 2025-11-10 4 P 0 2000 29.05 A 18115 I By Trust Common stock 0 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $29.00 to $29.10 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. Reflects common stock contributed by the reporting person to a trust which was exempt from reporting pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended. /s/Denise Balog, on behalf of David J. Mastrocola under Power of Attorney 2025-11-13